Hundreds of firefighters are still battling wildfires ravaging the Pacific Northwest with the 52,000-acre Norse Peak fire in Washington only 12 percent contained by Tuesday, September 12, according to the Bureau of Land Management (BLM).

The fire has been burning for over a month and has prompted hundreds of evacuations, though no structural damage has been recorded so far.

The 13 fires in the area were ignited by lightning on August 10th and 11th. Two fires, the Norse Peak Fire and the American Fire, have reached significant size and remain active. The combined fires are being known collectively as “Norse Peak.”

Officials said the fires are burning in steep rocky terrain, with difficult access. Local media said on Monday that 1,500 firefighters had been pulled in to tackle both the blaze at Norse Peak and another 30,000-acre wildfire at Jolly Mountain, located in the Okanogan-Wenatchee National Park.

Footage by the BLM shows the Norse Peak fire burning through the night.